Estados Unidos — economia de grande potencia mundial. Origem do capitalismo e socialismo. Uma economia de alto nível tecnológico. Sociedade socialista do leste europeu e países da CEI. Conflitos e tensões no leste europeu. Imperialismo da Europa Ocidental. Problemas sociais e conflitos étnicos culturais e religiosos. O espaço natural da Oceania. Países de grande desenvolvimento social e econômico. Os continentes em movimentos.
Clima aspectos classificatórios e Strahler. Clima índice Classificacao, Martone, Strahler, Koppen — Geiger Classificacao climas brasileiros. Massas de ar atmosféricas. A nova ordem mundial multipolar. As revoluções técnicos cientificas. Brasil, México Strahler Argentina. Pode apresentar geadas no inverno. Mapas do Brasil Como se forma o mapa de um país? Estudo do relevo Um aspecto importante a ser estudado é o relevo. Observe o que representam cada uma delas: Pontos Culminantes do Brasil: Com base no escoamento temos:.
Figura 5 — Mar Caspio — Classificado como Maior lago do mundo. Quanto à genética, proposta por Horton:. Rios subsequentes - tem seu controle pela estrutura das rochas acompanhando as linhas de fraqueza. Densidade de drenagem Dd.
Winds are light, which allows for the evaporation of moisture in the intense heat. They generally flow downward so the area is seldom penetrated by air masses that produce rain. This makes for a very dry heat. Climates in this zone are affected by two different air-masses.
The tropical air-masses are moving towards the poles and the polar air-masses are moving towards the equator. These two air masses are in constant conflict. Either air mass may dominate the area, but neither has exclusive control.
Characterized by grasslands, this is a semiarid climate. If it received less rain, the steppe would be classified as an arid desert.
With more rain, it would be classified as a tallgrass prairie. This dry climate Strahler in the interior regions of the North American and Eurasian continents. Classificacao ocean air masses are blocked by mountain ranges to the west and south. These mountain ranges also trap polar air in winter, making winters very cold. Summers are warm to hot. This is a wet-winter, dry-summer climate.
Extremely dry summers are caused by the sinking air of the subtropical highs and may last for up to five months.
Plants have adapted to the extreme difference in rainfall and temperature between winter and summer seasons. Sclerophyll plants range in formations from forests, to woodland, and scrub. Eucalyptus forests cover most of the chaparral biome in Australia. Fires occur frequently in Mediterranean climate zones.
Bacias de drenagem e Hidrograficas 2018
These dry climates are limited to the interiors of North America and Eurasia. Ocean air masses are blocked by mountain ranges to the west and south. This allows polar air masses to dominate in winter months. In the summer, a local continental air mass is dominant.
A small amount of rain falls during this season. Annual temperatures range widely. Summers are warm to hot, but winters are cold.
This climate is in the polar front zone - the battleground of polar and tropical air masses. Seasonal changes between summer and winter are very large. Daily temperatures also change often. Abundant precipitation falls throughout the year. It is increased in the summer season by invading tropical air masses. Cold winters are caused by polar and arctic masses moving south.